As of late Sunday, the so-called Clayton Fire was burning through 3,000 acres (1,200 hectares), with 1,044 personnel fighting the blaze, according to state firefighting agency Cal Fire.

At least 10 homes and businesses have been destroyed since the fire broke out around 5:00 pm on Saturday (0000 GMT Sunday).

Only five percent of the blaze, located more than 100 miles (160 kilometers) north of San Francisco, has been contained.

“The recent sustained, high temperatures around the state and historic statewide drought have made an ideal environment for dangerous fire conditions throughout California,” the California Office of Emergency Services said in a statement.

“The terrain is grassy oak woodland with heavy brush and has created difficult firefighting conditions,” it added.

The agency obtained a grant from the Federal Emergency Management Agency to help local authorities gather the necessary resources to fight the fire.